Pannel Failure - Haier HLC22K1 Servise Manual

9-4. Pannel failure

Failure Mode
Part Name Description
V B/D Vertical bar
Vertal
V Dim
line
Vertical color
V L/D line(light
TCP
dark forever)
Horizontal
H B/D
bar
Horizontal
H Dim
gary line
Horizontal
H L/D line(light
dark forever)
Failure Mode
Part Name
Dot Defect
Panel or
Polarizer
Polarlzer
Bubble
Polarizer
Scratch
F/M inside
Polarizer
Abnormal
Circuit
Display
Phenomena
gray
or
or
Description
Bright dot dark
dot in pannel
Bladder in
Polarizer
Polarizer Scratch
Eyewinker inside
Polarizer
Abnormal Display
Failure cause
Block Defect :TCP cracking or cracking
Dim or L/D :TCP Sunken
:TCP lead cracking
:ACF bonding short
:Awful environment and something electric enter into
LCD
:Mis-align between TCP and Panel
:Panel failure
:TCP failure
Phenomena
Incoming Inspection Standard
Bladder between Polarizer and top glass
Tine or rigidity arose
Eyewinker inside Polarizer
1. Chip lose action
2. IC ahort or jointiog bad
47
Failure cause